What are the symptoms of anaphylaxis?

I- Low mood and lack of pleasure in activities.
II- Weight changes and fatigue.
III- Skin reactions, respiratory and cardiovascular symptoms, and neurological symptoms.
IV- Gastrointestinal symptoms and genital pain.
a) Only I and II are correct.
b) Only III is correct.
c) I, II, and IV are correct.
d) Only III and IV are correct.